[jruby-user] JRE 7 / JRuby 1.7.13 - fatal error precompiling assets for Rails 3.2.x application

Environment:

Ubuntu 12.04 LTS
JRuby 1.7.13
JRE 7.0_60-b19
Rails 3.2.12 application

Hi all;

Does anyone recognize this problem or can anyone suggest what I might try
to figure out what's gone wrong?

$ *jruby -S rake assets:precompile:all RAILS_ENV=staging
RAILS_GROUPS=assets*

Starts off okay...

Compiled jquery-plugins/jquery.blockUI.js  (2ms)  (pid 29552)
Compiled jquery-plugins/jquery.cookie.js  (2ms)  (pid 29552)
Compiled jquery-plugins/jquery.form.js  (13ms)  (pid 29552)
Compiled jquery-plugins/jquery.safeEnter.js  (0ms)  (pid 29552)
Compiled ckeditor/basepath.js  (16ms)  (pid 29552)
Compiled ckeditor/ckeditor.js  (7ms)  (pid 29552)
Compiled ckeditor/jquery.js  (0ms)  (pid 29552)
Compiled ckeditor-jquery.js  (118ms)  (pid 29552)
Compiled application.js  (1346ms)  (pid 29552)
Compiled admin.js  (1389ms)  (pid 29552)

Then... boom:

#
# A fatal error has been detected by the Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=0x00007f32b205cff1, pid=29552, tid=139855679133440
#
# JRE version: Java(TM) SE Runtime Environment (7.0_60-b19) (build
1.7.0_60-b19)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (24.60-b09 mixed mode
linux-amd64 compressed oops)
# Problematic frame:
# V  [libjvm.so+0x5c2ff1]  oopDesc::size_given_klass(Klass*)+0x1
#
# Failed to write core dump. Core dumps have been disabled. To enable core
dumping, try "ulimit -c unlimited" before starting Java again


[ From error dump ]:
VM Arguments:
jvm_args: -Xmx500m -Xss2048k
-Djffi.boot.library.path=/home/sshadmin/.rvm/rubies/jruby-1.7.13/lib/jni
-Xbootclasspath/a:/home/sshadmin/.rvm/rubies/jruby-1.7.13/lib/jruby.jar
-Djruby.home=/home/sshadmin/.rvm/rubies/jruby-1.7.13
-Djruby.lib=/home/sshadmin/.rvm/rubies/jruby-1.7.13/lib
-Djruby.script=jruby -Djruby.shell=/bin/sh
java_command: org.jruby.Main -S rake assets:precompile:all
RAILS_ENV=staging RAILS_GROUPS=assets
Launcher Type: SUN_STANDARD

Environment Variables:
JAVA_HOME=/usr/lib/jvm/jdk1.7.0_60
PATH=/webapps/polar/shared/bundle/jruby/1.9/bin:/home/sshadmin/.rvm/gems/jruby-1.7.13/bin:/home/sshadmin/.rvm/gems/jruby-1.7.13@global
/bin:/home/sshadmin/.rvm/rubies/jruby-1.7.13/bin:/home/sshadmin/.rvm/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/imagemagick-6.7.2/bin:/usr/lib/postgresql/9.1/bin:/usr/lib/jvm/jdk1.7.0_60/bin
LD_LIBRARY_PATH=/usr/local/imagemagick-6.7.2/lib:/usr/local/imagemagick-6.7.2/lib:/usr/local/imagemagick-6.7.2/lib
SHELL=/bin/bash


Many thanks,
Tim